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Finding the Fourth Proportional to 1,382,054.76, 1,906,583.94 and 808,743.24

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Solution

The fourth proportional to 1,382,054.76, 1,906,583.94 and 808,743.24 is: 1,115,684.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,054.76 : 1,906,583.94 = 808,743.24 : x
  2. Step 2: Convert to fraction form
    1,382,054.76/1,906,583.94 = 808,743.24/x
  3. Step 3: Cross multiply
    1,382,054.76x = 1,906,583.94 × 808,743.24
  4. Step 4: Simplify right side
    1,382,054.76x = 1,541,936,872,967.57
  5. Step 5: Solve for x
    x = 1,541,936,872,967.57/1,382,054.76
  6. Step 6: Final answer
    x = 1,115,684.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.